/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#pragma once

#if ENABLE(JIT)

#include "RegisterAtOffset.h"
#include "RegisterSet.h"

namespace JSC {

class RegisterAtOffsetList {
    WTF_MAKE_FAST_ALLOCATED;
public:
    enum OffsetBaseType { FramePointerBased, ZeroBased };

    RegisterAtOffsetList();
    RegisterAtOffsetList(RegisterSet, OffsetBaseType = FramePointerBased);

    void dump(PrintStream&) const;

    void clear()
    {
        m_registers.clear();
    }

    size_t size() const
    {
        return m_registers.size();
    }

    RegisterAtOffset& at(size_t index)
    {
        return m_registers.at(index);
    }
    
    RegisterAtOffset* find(Reg) const;
    unsigned indexOf(Reg) const; // Returns UINT_MAX if not found.

    Vector<RegisterAtOffset>::const_iterator begin() const { return m_registers.begin(); }
    Vector<RegisterAtOffset>::const_iterator end() const { return m_registers.end(); }

private:
    Vector<RegisterAtOffset> m_registers;
};

} // namespace JSC

#endif // ENABLE(JIT)
